318 stroker

A 318 bored. 030 over with a 4 in stroke should yield 390 cubes.
I think that would be a 3.910 bore.
Would 340 J heads with a decent port and 2.02 intake valves work well in that combo?
I am thinking a 9.2 comp. Ratio, a cam with about 236 duration on on
Intake, 240 exhaust at. 050.
Also, shouldn't valve lift be in the range where it can take full advantage of the heads maximum flow? I mean if your heads flow best at. 560 valve lift then shouldn,t your cam opev open the valves. 560?